Plumb and level.



Nofmgsoa. A Patntd 066-23, i902.

J. H. & A. E. WEYANDT.

PLumB Ann LEVEL.

(Application led May 18, 1902.) (No Model.)

' mn'ron. DA c. me cams PETERS co. vHoYoLn'Ho.. wAsH U man STATES ATEN'TOFFICE.

JOHN H. WEYANDT AND ANDREW E. WEYANDT, OF BOWERSTON, OHIO.

PLUNIB AND LEVEL.

SPECIFICATION forming part of Letters Patent No. 716,603, dated December23, 19o-3 Application filed May 16, 1902. Serial No. 107,598. (Nomodel.)

To all whom, t may concern:

Be it known that we,.IOHN H.WEYANDT and ANDREW E. WEYANDT, citizens ofthe United States, residing at Bower-sten, in the county of Harrison,State o t' Ohio, have invented certain new and useful Improvements inPlumbs and Levels; and we do hereby declare the following to be afull,clear,and eXact description of the invention, suchv as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to combined plu mbs and levels; and it has forits object to provide a tool of this nature by means of which thequestions of whether or not a body is plumb or is level can bedetermined with accuracy, a further object of the invention being toprovide a construction wherein the dial may,

be read from either side of the tool or instrument.

Other objects and advantages of the invention have reference to detailsof structure and will be understood from the following description.

In the drawings forming a portion of this specification, and in whichlike numerals of reference indicate similar parts in the several views,Figure 1 is a side elevation ot an instrument embodying the presentinvention. Fig. 2 is an upper edge view or top view of the instrument.Fig. 3 is a vertical section taken transversely through the instrument.Fig. 4 is a section on line 4 4 of Fig. 1.

Referring new to the drawings, the present instrument comprises a bodyportion consisting of three layers 5, 6, and 7, of wood, these layersbeing disposed with the grain of each layer transverse to the grain ofthe adjacent layers,the parts being held together by means of screws 8and the result being a structure that Will not warp. In the centrallayer 6 of the body is formed a transverse circular opening 9, and inthe layers 5 and 7 are formed transverse segmental openings 10 and 11,which register with the opening 9 and have the same radius as saidcircular opening. Through the upper edge or top of the body is formed acircular opening 12, which communicates with the transverse openings, asshown, said opening 12 being covered by a glass 13, which is held in theplate 14, which in turn is seated in the upper face of the body to lieflush therewith. Centrally of the opening 9 and in the upper portionthereof is secured a segmental dial-plate 15, the uppermost point ofwhich is marked Zero, While the degrees are marked at each side thereof.

In the inner faces of the layers 5 and 7are secured the plates 16 and17, having the bearings 18 and 19,which are coaxialwith the plate 15 andthe openings in the layers of the body, and in the bearings 18 and 19are engaged the conical ends of the rock-shaft 20, from which dependsthe weight of the pendulum 21, While projecting from the opposite sideof the shaft are the spaced fingers 22 and 23, which lie at oppositesides of the plate 15 and which are designed to point to correspondingportions of the opposite faces of the plate, the Weighted pendulumserving to holdthe fingers at all timesin a vertical plane. Secured tothe plate 1J: diametrically of the opening 12 and below the glass 13 isa web or wire or thread 24, which is the line with which the ngers orindeXes register when the instrument is lying with its upper face leveland incidentally with its lower face level.

The openings in the layers 5 and 7 are countersunk to receive segmentalglass plates 26, which are held in place by means of metal bands 27,these glass plates acting to protect the interior mechanism, whilepermitting sight of an index from either side of the instrument.

To permit the use of the instrument fordetermining when the body isplumb, a recess is formed in one face of one end of the body, and inthis recess is pivotally mounted the shaft 30, which carries the index31 and the pendulum 32, the "shaft being mounted in bearings in thebottom of recess and in the plate 33, respectively, said plate 33 beingsecured over a portion of the'recess in such position as to cover theweight and expose the index, and on the inner face of the plate areformed the stops 34, which lie in the path of movement of the weight orpendulum to limit the movement ot' the index. A plumb-point 36 is markedon the face ofthe body and with which the free end of the indexregisters when the instrument is held vertical. The recess is providedwith a glass plate 37, which covers that portion in which the indexoperates, so that the index may be seen.

FOO

tering with and coaxial with the first-named opening, a Weighted indexpivotally mounted ative relation to the index and transparent closuresfor the openings in the side layers.

In testimony whereof We affix our signatures in presence of twoWitnesses.

JOHN H. WEYANDT. ANDREW E. WEYANDT. Witnesses:

W. B. LAW, J. E. SMITH.

1n the rst-named opening, a dial in coperi5

